Aliens could be STRANDED on own planets because gravity is TOO strong ALIENS may not be able to conquer space travel as the gravity on their home planet may be too strong for them to escape from, according to a new theory which could explain why we are yet to meet extraterrestrials. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Antibiotic resistance genes are SPREADING through the air and could spark major outbreakDr. Kimishige Ishizaka, Who Found Allergy Link, Dies at 92Trilobites: Worker Ants: You Could Have Been QueensClean, Sober and $41,000 Deep in Out-of-Pocket Addiction Recovery CostsEclipse in India: How to see the Blood Moon in India and Pakistan? Timings of lunar eventLunar eclipse near me: Blood Moon 2018 path and map of totality TOMORROW